1 menu "SPI Flash Support"
4 bool "Enable Driver Model for SPI flash"
5 depends on DM && DM_SPI
8 Enable driver model for SPI flash. This SPI flash interface
9 (spi_flash_probe(), spi_flash_write(), etc.) is then
10 implemented by the SPI flash uclass. There is one standard
11 SPI flash driver which knows how to probe most chips
12 supported by U-Boot. The uclass interface is defined in
13 include/spi_flash.h, but is currently fully compatible
14 with the old interface to avoid confusion and duplication
15 during the transition parent. SPI and SPI flash must be
16 enabled together (it is not possible to use driver model
17 for one and not the other).
19 config SPI_FLASH_SANDBOX
20 bool "Support sandbox SPI flash device"
21 depends on SANDBOX && DM_SPI_FLASH
23 Since sandbox cannot access real devices, an emulation mechanism is
24 provided instead. Drivers can be connected up to the sandbox SPI
25 bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this
26 device. Typically the contents of the emulated SPI flash device is
27 stored in a file on the host filesystem.
30 bool "SPI Flash Core Interface support"
33 Enable the SPI flash Core support. This will include basic
34 standard support for things like probing, read / write, and
35 erasing through cmd_sf interface.
40 int "SPI Flash default bus identifier"
41 depends on SPI_FLASH || DM_SPI_FLASH
44 The default bus may be provided by the platform
45 to handle the common case when only a single serial
46 flash is present on the system.
49 int "SPI Flash default Chip-select"
50 depends on SPI_FLASH || DM_SPI_FLASH
53 The default chip select may be provided by the platform
54 to handle the common case when only a single serial
55 flash is present on the system.
57 config SF_DEFAULT_MODE
58 hex "SPI Flash default mode (see include/spi.h)"
59 depends on SPI_FLASH || DM_SPI_FLASH
62 The default mode may be provided by the platform
63 to handle the common case when only a single serial
64 flash is present on the system.
65 Not used for boot with device tree; the SPI driver reads
66 speed and mode from plat values computed from
69 config SF_DEFAULT_SPEED
70 int "SPI Flash default speed in Hz"
71 depends on SPI_FLASH || DM_SPI_FLASH
74 The default speed may be provided by the platform
75 to handle the common case when only a single serial
76 flash is present on the system.
77 Not used for boot with device tree; the SPI driver reads
78 speed and mode from plat values computed from
83 config SPI_FLASH_SFDP_SUPPORT
84 bool "SFDP table parsing support for SPI NOR flashes"
85 depends on !SPI_FLASH_BAR
87 Enable support for parsing and auto discovery of parameters for
88 SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
89 tables as per JESD216 standard.
91 config SPI_FLASH_SMART_HWCAPS
92 bool "Smart hardware capability detection based on SPI MEM supports_op() hook"
95 Enable support for smart hardware capability detection based on SPI
96 MEM supports_op() hook that lets controllers express whether they
97 can support a type of operation in a much more refined way compared
98 to using flags like SPI_RX_DUAL, SPI_TX_QUAD, etc.
100 config SPI_FLASH_SOFT_RESET
101 bool "Software Reset support for SPI NOR flashes"
104 Enable support for xSPI Software Reset. It will be used to switch from
105 Octal DTR mode to legacy mode on shutdown and boot (if enabled).
107 config SPI_FLASH_SOFT_RESET_ON_BOOT
108 bool "Perform a Software Reset on boot on flashes that boot in stateful mode"
109 depends on SPI_FLASH_SOFT_RESET
112 Perform a Software Reset on boot to allow detecting flashes that are
113 handed to us in Octal DTR mode. Do not enable this config on flashes
114 that are not supposed to be handed to U-Boot in Octal DTR mode, even
115 if they _do_ support the Soft Reset sequence.
118 bool "SPI flash Bank/Extended address register support"
120 Enable the SPI flash Bank/Extended address register support.
121 Bank/Extended address registers are used to access the flash
122 which has size > 16MiB in 3-byte addressing.
124 config SPI_FLASH_UNLOCK_ALL
125 bool "Unlock the entire SPI flash on u-boot startup"
128 Some flashes tend to power up with the software write protection
129 bits set. If this option is set, the whole flash will be unlocked.
131 For legacy reasons, this option default to y. But if you intend to
132 actually use the software protection bits you should say n here.
135 bool "SPI DUAL flash memory support"
137 Enable this option to support two flash memories connected to a single
138 controller. Currently Xilinx Zynq qspi supports this.
140 config SPI_FLASH_ATMEL
141 bool "Atmel SPI flash support"
143 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
146 bool "EON SPI flash support"
148 Add support for various EON SPI flash chips (EN25xxx)
150 config SPI_FLASH_GIGADEVICE
151 bool "GigaDevice SPI flash support"
153 Add support for various GigaDevice SPI flash chips (GD25xxx)
155 config SPI_FLASH_ISSI
156 bool "ISSI SPI flash support"
158 Add support for various ISSI SPI flash chips (ISxxx)
160 config SPI_FLASH_MACRONIX
161 bool "Macronix SPI flash support"
163 Add support for various Macronix SPI flash chips (MX25Lxxx)
165 config SPI_FLASH_SPANSION
166 bool "Spansion SPI flash support"
168 Add support for various Spansion SPI flash chips (S25FLxxx)
170 config SPI_FLASH_S28HS512T
171 bool "Cypress S28HS512T chip support"
172 depends on SPI_FLASH_SPANSION
174 Add support for the Cypress S28HS512T chip. This is a separate config
175 because the fixup hooks for this flash add extra size overhead. Boards
176 that don't use the flash can disable this to save space.
178 config SPI_FLASH_STMICRO
179 bool "STMicro SPI flash support"
181 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
183 config SPI_FLASH_MT35XU
184 bool "Micron MT35XU chip support"
185 depends on SPI_FLASH_STMICRO
187 Add support for the Micron MT35XU chip. This is a separate config
188 because the fixup hooks for this flash add extra size overhead. Boards
189 that don't use the flash can disable this to save space.
192 bool "SST SPI flash support"
194 Add support for various SST SPI flash chips (SST25xxx)
196 config SPI_FLASH_WINBOND
197 bool "Winbond SPI flash support"
199 Add support for various Winbond SPI flash chips (W25xxx)
202 bool "XMC SPI flash support"
204 Add support for various XMC (Wuhan Xinxin Semiconductor
205 Manufacturing Corp.) SPI flash chips (XM25xxx)
208 bool "XTX SPI flash support"
210 Add support for various XTX (XTX Technology Limited)
211 SPI flash chips (XT25xxx).
215 config SPI_FLASH_USE_4K_SECTORS
216 bool "Use small 4096 B erase sectors"
220 Many flash memories support erasing small (4096 B) sectors. Depending
221 on the usage this feature may provide performance gain in comparison
222 to erasing whole blocks (32/64 KiB).
223 Changing a small part of the flash's contents is usually faster with
224 small sectors. On the other hand erasing should be faster when using
225 64 KiB block instead of 16 × 4 KiB sectors.
227 Please note that some tools/drivers/filesystems may not work with
228 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
230 config SPI_FLASH_DATAFLASH
231 bool "AT45xxx DataFlash support"
232 depends on SPI_FLASH && DM_SPI_FLASH
234 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
235 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
236 in each chip, which may be used for double buffered I/O; but this
237 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
239 Sometimes DataFlash is packaged in MMC-format cards, although the
240 MMC stack can't (yet?) distinguish between MMC and DataFlash
241 protocols during enumeration.
246 bool "SPI Flash MTD support"
247 depends on SPI_FLASH && MTD
249 Enable the MTD support for spi flash layer, this adapter is for
250 translating mtd_read/mtd_write commands into spi_flash_read/write
251 commands. It is not intended to use it within sf_cmd or the SPI
252 flash subsystem. Such an adapter is needed for subsystems like
253 UBI which can only operate on top of the MTD layer.
257 config SPL_SPI_FLASH_MTD
258 bool "SPI flash MTD support for SPL"
261 Enable the MTD support for the SPI flash layer in SPL.
265 endmenu # menu "SPI Flash Support"